Michael West

Role: Integration and Software

To Do List:

• Set http://www.mtrx3700.wikispaces.com as a homepage.
• Write serial transmission code and upload it to the Modules page.
• Peer review get_AD_value. Suggest changes if necessary.
• Peer review store_sample. Suggest changes if necessary.
  
  

Hi Michael, I put this together for COUNT mode - I thought I would share it with you so you can see how I chose to wait for user input. Tell me if you think it will work.

count_mode(void)
{
    int i = 0;
    char itemStr[4];
    transmit(COUNT1); //You are in count mode. Please place one or more identical items on the scales.
    totalMass = weigh();
    transmit(int_to_string(totalMass));
    transmit(COUNT2); //How many items are on the scales?
    //settings.recieveMode = RAW; //save numbers from string, don't interperet or change modes
 
    numstart = recvbuf_iPtr; //Remember the start of the recieve string
    //Wait for an <enter>, then return the number from the recvstring
    while(*recvbuf_iPtr != 0x0D || *recvbuf_iPtr != 0x0A)
    {
        //wait for an enter/lf to indicate user has entered a number
    }
 
    for(i = 0; recvbuf_ePtr < recvbuf_iPtr; i++)
    {
        itemStr[i] = *recvbuf_ePtr;
    }
    itemStr[i] == '\0';
 
    items = str_to_int(itemStr);
 
    itemMass = totalMass/items;
 
    transmit(COUNT3); //Now, put an unknown number of items on the scales, then press enter.
 
    while(*recvbuf_iPtr != 0x0D || *recvbuf_iPtr != 0x0A)
    {
        //wait for an enter/lf to indicate user is done
    }
 
    transmit(int_to_string(getMass()/itemMass);
 
}
 
int str_to_int(char* string)
{
    int sum;
    int length = strlen(string);
    int multiplicand = 1;
 
    for(length = strlen(string); length > 0; length--)
    {
        sum += (string[length] - '0')*multiplicand;
        multiplicand *= 10;
    }
 
    return sum;
}